公开(公告)号：US20220416838A1

公开(公告)日：2022-12-29

申请号：US17900725

申请日：2022-08-31

Applicant: Apple Inc.

Inventor： Danyom Berhane ,  Brian B. Whitaker ,  Mohammad B. Vahid Far ,  Tracey L. Chavers

IPC: H04B1/525 ,  H04B1/04 ,  H04B1/44

Abstract: An electronic device may include a transceiver, an antenna, and a front end module (FEM) coupled between the transceiver and antenna. Components on the FEM may operate on radio-frequency signals. The FEM may include a digital controller with a leakage management engine. The leakage management engine may monitor power supply voltages received by the FEM. In response to detection of a trigger condition, the leakage management engine may power off a set of the components while at least some of the FEM remains powered on. The trigger condition may be a change in the power supply voltages or a host command received from a host processor. Using the leakage management engine to power off the set of front end components may serve to minimize leakage current on the FEM, thereby maximizing battery life and shelf life for the device, without the use of bulky and expensive external load switches.

公开(公告)号：US20240372578A1

公开(公告)日：2024-11-07

申请号：US18312550

申请日：2023-05-04

Applicant: Apple Inc.

Inventor： Mohammad B. Vahid Far ,  Danyom Berhane ,  Yilin Feng ,  Kevin Bastin

IPC: H04B1/401 ,  H03F1/56 ,  H03F3/24

Abstract: An electronic device may include wireless circuitry with radios and a front end module coupled to an antenna. The module may include a multi-stage, multi-cell reconfigurable power amplifier and a radio-frequency coupler shared by the radios and different radio access technologies (RATs). One or more processors may adjust a number of active stages of the power amplifier, circuitry and bias conditions of the active stages, tunable capacitors on the module, adjustable impedance matching networks on the module and/or in the power amplifier, and/or the coupler using a digital interface to place the module in different operating modes corresponding to different RATs, power levels, modulation schemes, and/or frequencies. Adjusting the operating mode may allow the power amplifier to be reconfigured to meet performance requirements while maximizing performance, meeting regulatory requirements, and minimizing power. Sharing the power amplifier and the coupler across radios and RATs may produce space and power savings.

公开(公告)号：US20240014847A1

公开(公告)日：2024-01-11

申请号：US18474042

申请日：2023-09-25

Applicant: Apple Inc.

Inventor： Danyom Berhane ,  Brian B. Whitaker ,  Mohammad B. Vahid Far ,  Tracey L. Chavers

IPC: H04B1/525 ,  H04B1/04 ,  H04B1/44

CPC classification number: H04B1/525 ,  H04B1/0458 ,  H04B1/44 ,  H04B2001/0408

Abstract: An electronic device may include a transceiver, an antenna, and a front end module (FEM) coupled between the transceiver and antenna. Components on the FEM may operate on radio-frequency signals. The FEM may include a digital controller with a leakage management engine. The leakage management engine may monitor power supply voltages received by the FEM. In response to detection of a trigger condition, the leakage management engine may power off a set of the components while at least some of the FEM remains powered on. The trigger condition may be a change in the power supply voltages or a host command received from a host processor. Using the leakage management engine to power off the set of front end components may serve to minimize leakage current on the FEM, thereby maximizing battery life and shelf life for the device, without the use of bulky and expensive external load switches.

公开(公告)号：US11539393B2

公开(公告)日：2022-12-27

申请号：US16988537

申请日：2020-08-07

Applicant: Apple Inc.

Inventor： Danyom Berhane ,  Brian B. Whitaker ,  Mohammad B. Vahid Far ,  Tracey L. Chavers

IPC: H04B1/44 ,  H04B1/525 ,  H04B1/04

Abstract: An electronic device may include a transceiver, an antenna, and a front end module (FEM) coupled between the transceiver and antenna. Components on the FEM may operate on radio-frequency signals. The FEM may include a digital controller with a leakage management engine. The leakage management engine may monitor power supply voltages received by the FEM. In response to detection of a trigger condition, the leakage management engine may power off a set of the components while at least some of the FEM remains powered on. The trigger condition may be a change in the power supply voltages or a host command received from a host processor. Using the leakage management engine to power off the set of front end components may serve to minimize leakage current on the FEM, thereby maximizing battery life and shelf life for the device, without the use of bulky and expensive external load switches.